4 papers
Circle packings on surfaces with projective structures
Sadayoshi Kojima, Shigeru Mizushima, Ser Peow Tan
The Andreev-Thurston theorem states that for any triangulation of a closed orientable surface Σ_g of genus g which is covered by a simple graph in the universal cover, there exists…
Complex hyperbolic cone structures on the configuration spaces
Sadayoshi Kojima
The space of marked n distinct points on the complex projective line up to projective transformations will be called a configuration space in this paper. There are two families of…
Configuration spaces of points on the circle and hyperbolic Dehn fillings
Sadayoshi Kojima, Haruko Nishi, Yasushi Yamashita
A purely combinatorial compactification of the configuration space of n (>4) distinct points with equal weights in the real projective line was introduced by M. Yoshida. We geometr…
Deformations of hyperbolic 3-cone-manioflds
Sadayoshi Kojima
We show that any compact orientable hyperbolic 3-cone-manifold with cone angle at most πcan be continuously deformed to a complete hyperbolic manifold homeomorphic to the complemen…